alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE User-Agent (Unknown)"; flow:to_server,established; content:"User-Agent|3a| Unknown|0d 0a|"; http_header; reference:url,doc.emergingthreats.net/bin/view/Main/2007991; classtype:trojan-activity; sid:2007991; rev:6;)

Added 2011-12-15 18:09:33 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious User Agent (Unknown)"; flow:to_server,established; content:"User-Agent|3a| Unknown|0d 0a|"; http_header; reference:url,doc.emergingthreats.net/bin/view/Main/2007991; classtype:trojan-activity; sid:2007991; rev:6;)

Added 2011-10-12 19:24:14 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious User Agent (Unknown)"; flow:to_server,established; content:"User-Agent|3a| Unknown|0d 0a|"; http_header; classtype:trojan-activity; reference:url,doc.emergingthreats.net/bin/view/Main/2007991; sid:2007991; rev:6;)

Added 2011-09-14 22:37:42 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious User Agent (Unknown)"; flow:to_server,established; content:"User-Agent|3a| Unknown|0d 0a|"; http_header; classtype:trojan-activity; reference:url,doc.emergingthreats.net/bin/view/Main/2007991; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/USER_AGENTS/USER_AGENTS_Suspicious; sid:2007991; rev:6;)

Added 2011-02-04 17:27:05 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious User Agent (Unknown)"; flow:to_server,established; content:"|0d 0a|User-Agent\: Unknown|0d 0a|"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/bin/view/Main/2007991; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/USER_AGENTS/USER_AGENTS_Suspicious; sid:2007991; rev:4;)

Added 2009-10-19 09:15:44 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious User Agent (Unknown)"; flow:to_server,established; content:"|0d 0a|User-Agent\: Unknown|0d 0a|"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/bin/view/Main/2007991; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/USER_AGENTS/USER_AGENTS_Suspicious; sid:2007991; rev:4;)

Added 2009-10-19 09:15:44 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious User Agent (Unknown)"; flow:to_server,established; content:"|0d 0a|User-Agent\: Unknown|0d 0a|"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/bin/view/Main/2007991; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_USER_Agents; sid:2007991; rev:2;)

Added 2009-02-09 22:22:08 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious User Agent (Unknown)"; flow:to_server,established; content:"|0d 0a|User-Agent\: Unknown|0d 0a|"; classtype:trojan-activity; sid:2007991; rev:1;)

Added 2008-03-13 16:51:42 UTC

We have observed the "Unknown" user-agent being using in association with "Genesys Conferencing" clients. http://www.genesys.com/

POST /Athena/Upl
oadDataEx.gen?V=
41 HTTP/1.1..Acc
ept: text/*, tex
t/html, */*..Con
tent-Type: image
/gif..User-Agent
: Unknown..Host:
 ath112act.mc.ic
onf.net..Content
-Length: 128..Co
nnection: Keep-A
live..Cache-Cont
rol: no-cache...
.DATA|..........
.........h......
...b............
B...1,10409

-- MikeWazowski - 02 Sep 2008


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious User Agent (Unknown)"; flow:to_server,established; content:"|0d 0a|User-Agent\: Unknown|0d 0a|"; classtype:trojan-activity; sid:2007991; rev:1;)

Added 2008-03-13 16:49:28 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious User Agent (Unknown)"; flow:to_server,established; content:"|0d 0a|User-Agent\: Unknown|0d 0a|"; classtype:trojan-activity; sid:2007991; rev:1;)

Added 2008-03-13 16:49:28 UTC


Topic revision: r3 - 2008-09-02 - MattJonkman
 
This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright © Emerging Threats